Page:Quarterly Journal of the Geological Society of London, vol. 27.djvu/625

 Norwich Crag to the Westleton beds at the Thorpe pit. The latter there put on the character of a coarse ferruginous shingle passing under the Boulder-clay series higher up the hill; but that is not seen in this pit. The shells of this ferruginous bed (x 5) consist, as far as they have been determined by Mr. Reeve, of: —

Cardium edule.

Mytilus edulis.

Mya arenaria.

Tellina obliqua.

Modiola (large sp.).

Littorina littorea.

Purpura lapillus.

There is, however, nearer Norwich, a section which, although wanting in the confirmation afforded by organic remains; shows in a very interesting manner the superposition of the whole series, and the relation of different members of the Crag and glacial beds in this district (fig. 39).

Fig. 39. — Pit at Bishopford Bridge, Norwich.

feet.

7. Coarse ochreous loamy roughly stratified flint-gravel 25

6. Brown Boulder-clay (lower division) 15

5. White sands and flint-shingle (Westleton beds) 20

3. An irregular seam of grey clay (Chillesford Clay?) 0 to 1

3' (?) & 2'. White and ochreous sands, and flint-shingle and gravel. Small patches of shells (Norwich Crag) found occasionally in the lower part, and large flints at the base 12